Exhaust pipe extension



' G. A. LYON EXHAUST PIPE EXTENSION Jan. 9, 1940.

Filed 001:. 25, 1957 EORGE ALBERT LYON motive vehicle; c v v v, Man'y arrang ements have been provided in thepast for-enhancing theappearance of the Patented lan. 9 v i 4 ApplicationOctober-1'25;1937, Scria l No'.. 170,7 85.

; This invention relates to :an exhaust pipe extension,;and=more particularly to anornamental extension member vvhich may readily and quick-- 1y beassembled on the 'exh ust pipeof an autoend of the exhaust pipeof a=motor vehicleg These arrangements, however, have not been entirely satisfactory. It is important, in constructing an exhaust [pipe extension memberpxto provide a member which Will be ornamental in, appearance,

,whichwill'be ruggedand': reliable in :use, so that -it' will j withstan'd the .excessive vibrations ofba vehicleWhile. in motion, and Whichis, equipped with meanswhich willpermit it to be readily and quickly mounted. onthe exhaust pipe. It is also important that vsome means be provided to protect the ,ornamentalpplate from the destructivei; action vof the hot gases issuing from theexhaust pipe; I I Itgis an object of this invention toprovide a novel exhaust pipe extension member having the above highly desirablecharacteristics. v lft is' another object of this invention to "provide a: novel exhaust pipeyextensionf member havingpnovel; {means --th'ereon for securing .the

member'to thepexhaust pipe,

It is a further object of this"invention to pie:

vide a novel exhaust-pipe extension member whichlis economical to-manufact1 ue, which is ruggedandreliable in use, and whch isequipped with novel means fo'r quickly and firmly securing .the memberto an exhaust pipe.

Anot er and further object of this invention prov'jjde a novel exhaust, pipe extension memher having novelmeansthereon for protecting 3 the ornamental surface thereof from the destructiveaction from the hot gases issuing from the exhaust pipe.

tion is to prov dea novel segmental spherical exhaust pipe extension Inembervvhichis arrangedto extend obliquely rearwardly and downwardly from therearward end-of the exhaust pipe. v

The novel featmeswhich I believe bejchare acte'ris'ti'c of my, invention are set forth with particularity "in the appended claims., My in-vvention itself, hovvever both as to its'organiza tion and manner o f' construction, together with] further objects; andadvantages thereof, may best be understood by reference to theifollowing description, taken in connection with the accom-..

pa y ng I drawi which: ,5;

2 Claims. (01, 138-425) Another and still further object 6f this inven Figure .1 isa sideelevational view of the lower rear end of Jan'dautomobileequippedwith an exhaust 'pipesextens'ion memberon the rear-edge of the exhaust pipe;

- :Figure Z is a 'top view f 'the "exhaust pipe '5 I extensionmember of,;Figure 1;. w

Figure- 3 is -a :side. elevational 'view in crosssection, takenalongtheline ,III-II I of Figure ,2;

.Figure 4 is a, rear elevational view in cross:

section, taken along .th elirieIV-IVv of Figure 3; 6

Figure 51s a rear elevational View of a modified '1 form of clamping arrangement for securingthe I extensionmember to. the exhaustppipe;

"Figure. 6 is a side elevational ent invention in whicha clamping ring is provided which makes a biting engagement, with tliev end of the exhaust pipe;'and x Y I v Figure? is',.a;''ear elevationalview in cross berof Figure .6. l 1 v Referring now, to the-embodiment of the in-. ventionillustrated. in Figures 1 toe, there is illustrated in Figure 1 the rear'end of anautosection, showing the exhaust pipe'extension mem- 2 0 mobile H), which ist equippedl on its underside with 'a rearwardly extending exhaustpipe .ll. Secured to the end oftheiexhau'st pipe H is *a segmentalzspherica'l exhaust pipe extension member |2; ,Whichislconstructed jandvfor'med in accordance withgthe jprinciplesj of the'present in- 'vention, I In Figures-2,)3 ;and e, the extension member I2 is illustrated in detail. As shown in these figures, the extension member l2;is form ed from suitable -.sheet metal stock and includes a segf mental sphericalf'or dish-like'outer member l3 whichtis preiferably given a high polish finish, f

a chromium-plated finish or some other suitable 1 ornamental 1fi, nish' overfits outer surface. 'Se-- cured over :the underside of. thezmember l3'is'40 a sheet metal protective-platel l. which ispref'er ably spaced from the under-surface of. the m'em- I b'er l3 in the ;"manner. indicated in Figure3'of the drawing. l

v'I helprotective" plateullmay be s'ecuredto-the 45. i member'l3 in'any fsuitable'manner, such, for

example, as by crimping the outer ,in'argi'nal edge ofthe.member lfi-varound the outer edge of the plate i4,jas at l5. It. has'been found that when a protective ,platefsuch as M is .provided on the underside of the ornamental exhaust 'pipefextension member} [3' and placed in' spaced relationship thereto, theldestructive action caused by thephot gases issuing from the end of the v t exhaust n -pipe;l,l.;1is, greauyreduced; -11; 5Q r Y View in 'cross= I sectionrshOwing a-third embodiment of the pres-y the exhaust pipe II.

ing of the ornamental segmental spherical plate I3 at an angle permits the finished or high polished surface thereof to be seen more readily, and thus greatly enhances-the appearance of the rear end of the exhaust pipe I I. The manner in which the exhaust pipe extension member I2 is secured tothe exhaust pipe II will now be described. Two tabs I6 are struck out of the protective plate. I4 between the center of the plate 54 and the rearedge thereof. Two

holes or apertures I'I are left in the protective plate It where the tabs I6 are struck therefrom. A split ring clamping member I8 having downwardly bent apertured ends I9 is passed through the apertures I'I over .the top of the portion 29 Y of the protectiveplate I4. which intimately overlies the top of the exhaust pipe II.

Opposite ends of the clamping ring It extend around the exhaust pipe II to secure the exhaust pipe extension member I2 thereto A clamping bolt 2| is passed through theapertured ends I 9 of the clamping ring It and is secured in place by means of a clamping nut 22. By virtue of the fact that the clamping ringIE hooks over a portion 2!] of the protective plate Mthrough the aperture I I, and by virtue of the fact that it extends substantially completely around the exhaust pipe I I and is snugly secured thereto the exhaust pipe extension member I2 is held securely and firmly .in desired position on the end of the exhaust pipe II.

In Figure 5 of the drawing, a modification of the invention is shown wherein the clamping ring I 8 instead of passing through the aperture I? over the central portion of theprotective plate I4, is spot welded or otherwise suitably secured as at 23 to the underside of the central portion 20 which intimately overlies the upper surface of In this form of the invention, no apertures are necessaryv in theprotective plate It, and may therefore be eliminated. The

lower ends I9 of the clamping ring I8 are secured together by means of a clamping bolt ZI and a clamping nut 22. e

In Figures 6 and 7 of the drawing a third embodiment of the present invention is illustrated. In this embodiment, the exhaust pipeextension member I2 is secured to the exhaust pipe I I by means of a clamping member 24 which is .provided with a double row of obliquely rearwardly extending teeth 25 and 26.. The opposite ends 21 and 28 of the clamping member 2 are riveted or otherwise suitably secured, as at 29, to the. protective plate I4 which is carried on the underside of the segmental spherical plate I3. As may be seen best in Figure 7, of the drawing, the portion of the clamping member 24 intermediate of its ends 21 and 28 lies in spaced relationship. to the exhaust pipe II. The double row of obliquely rearwardly extending. teeth 25 and 26, however, are arranged in such a manner that the clamping member 24 may be. passed over the rear end of the exhaust pipeI I,.the teeth 25 and 26 being cammed outwardly a sufiicient extent to permit them to ride over the exhaust pipe II. Any attempt to force the clamping member 24 or the extension member I2 -in the reverse direction,

however, causes the teeth 25 and 26 to bite into the metal of the exhaust pipe II. It will thus A portion of the protective plate I t is prefer- I ably shaped to intimately overlie the upper surface of the exhaust pipe II, as at 3i]. Inorder .to limit the forward movement of the extension member-I2 as the teeth 25. and 26 are passed over the end of the exhaust pipe II, the central portion of the protective plate I4 is bent downwardly, as at 3|, at the rear end of the portion 30 which is shaped to intimately overlie the upper surface of the exhaust pipe II By shaping a portion-of the protective plate .Ifldownwardl'y, as

at M, a convenient. stop is provided which limits the extent to which the exhaust pipe extension member I 2 may befshoved onto theend of the exhaust pipe II. I 1

Although the particular shape and configuration of the protective plate I4 may bev varied through wide limits without departing from the spirit and scope of the present invention, it is preferable to formthe protective plate I4 in such a manner as to maintain a substantial portion of the plate in spaced relationship to the undersurface of the ornamental plate 13. A slight variation of the cross-sectional configuration of the protective plate I I'near its outer marginal edge is shown in Figure .6" ofthe drawing at 32. Itshould be understood, however, that a protective plate It having. a marginal edge portion similar to .thatshown a Figure 3 may beemployed with the clamping member of the embodiment of the inventionshown in Figures 6 and 7 without departing. from the'spirit and scope of the present invention. 1

From the above descriptiomit willbe apparent that I have provided an extraordinarily simple exhaust pipe extension member which is economical to manufacture, which is reliable in use, and which may be readily assembled on the end of an exhaust pipe by an unskilledperson. It will furthermore'be understood from. a cursory inspection of thevarious figures of the drawing that I have provided an exhaust pipe extension which greatly enhances-the general appearanceof the rear part of an automobile and whose ornamental face is not subjected to the destructive influence of the hot gases issuing from the endofthe exhaust pipe.

While I have shown particular embodiments of my invention, it will, of course, be understood that I do not wish to be limited thereto, since many modifications may be made, and I therefore contemplate by the appended claims to cover all such modifications as fall within the true spirit and scope of my invention.

I claim as my'invention:

*1. In combination with an exhaust pipe, an exhaust deflector including a segmental spherical upper member, a hot gas protective plate secured to the underside. of said member and having a portion thereof shaped to intimately overlie an upper portion of said exhaust pipe, said protective plate having a shoulder formed opposite the end of said portion which intimately overlies a portion of said exhaust pipe, and aclamping band having a plurality of obliquely rearwardly extending teeth which extend into biting engagement with said exhaust pipe, said teeth preventing rearward movement. of said deflector and said shoulder preventing forward movement of said deflector after said deflector has once been mounted on said exhaust pipe. 7

2. As an article ofmanufacture, an exhaust pipe accessory comprising a plate adapted to flt against one side of an exhaust pipe, and a band secured at both ends to said plate so as to extend around on the other side of said exhaust pipe, said band being formed of sheet metal and having teeth extending obliquely inward from at least one of its edges to make a biting engagement with said exhaust pipe.

' GEORGE ALBERT LYON. 

